Slotting-machine.



W. J. HAGMAN. SLOTTING MACHINE. APPLIOATIOK FILED MAR. 1. 1909.

Ihventor Sass Patented Oct. 11, 1910.

[n1 w Attorney of which the following is a specification.

section,through the main portions of a slot- UNITED s'rA rpsPATENTOFFICE,

WILLIAM JOSEPH HAGMAN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO NILES-ELEMENT-POND COMPANY, OF JERSEY CITY, NEW JERSEY.

'SLOTTING-MACHINE.

972,367. Specification of Letters Patent. Patented 0011;, 11, 1910,

Application filed March 1, 1909. Serial No. 480,641.

To all whom it may concern: 5 After a wheel 5 is secured on the table,

Be it known that I, \VILLIAM JOSEPH HAG- MAN, a citizen of the UnitedStates, residing 5 at Philadelphia, Philadelphia county, Pennsylvania,have invented certain new and useful Improvements in slotting-Machines,

the bore of the wheel hub in which it is desired to cut a slot, and theopening 4 in the table and its supporting members, are centered inrelation to the bushing 11 by move ment of the carriage 3 on its guidesand by transverse movement of the slide 3 on its guides. \Vhilc the toolis in idle reciproca- This invention, relating to improvements inslotting machines to adapt such mai chines tor the keyseating of wheels,will be readily iniderstoml from the following description taken inconnection with the accompanying drawing in which-.

Figure l is a side elevation, part vertical is then moved by propermovement of the carriage and slide in the direction toward the cuttingend of the tool a sufficient distance to enable/the tool to take a cutin the wheel bore, and this movement is repeated at each cutting strokeuntil the key seat is completed.

The table 4 may be rotated by suitable devices to provide for the properwidth of slot or to bring a new portion of the wheel bore into positionto be cut.

\V hen the work of the tool-bar is done and it is desired to remove itfrom the machine the removal is effected without disturbance of bushing11. The bushing 11 is to be removed and another substituted when calledfor by the employment of a different size tool-bar.

I claim In a slotting machine the combination of a frame having a baseprovided with guides and a horizontal web between the guides, said webbeing provided with an aperture, a bushing secured to-the web in saidaperture, a longitudinally movable carriage mounted on said guides, aslide on the carriage en gaging guides thereon arranged transversel tothe guides first, mentioned, a work hold ing table rotatably mounted onsaid slide and a vertical tool bar assing through said bushin thecarriages ids and table being central y apertured to accommodate thetool bar and capable of adjustment by means of the said guides to locatesaid aperture in relation to said bushing.

YVILLIAM JOSEPH HAGMAN.

Witnesses:

AUGUSTINE Semi/mo, F. T. MILES.

ting machine embodying my invention, and Fig. 2 a front elevation, partvertical section, of the same.

In the drawing: 1, indicates a frame upright of an ordinary slottingmachine: 2, its knee: 3, the saddle guides at the top of the knee: 3, acarriage arranged to move horizontally on said guides; 3", horizontalguides on the carriage arranged transversely to guides 33; 3, a slidemounted to move horizontally on guides 3"; 4, a work-holding tablerotatably mounted on slide 3; the table, slide 3 and carriage 3 beingprovided with a central opening 4 to accommodate the tool bar; 6, a ramguide: 7, a ram sliding therein: 8, a tool-holder at the foot of theram: 9, a vertically disposed tool-bar passing through the verticalopening in the table and having its upper end firmly secured to thetool-holderz 10, an opening in the top of the knee below the opening inthe table: 11, a bushing firmly secured in the opening 10 and snuglyfitting the toolbar: and 12, the tool secured in a transverse mortise inthe tool-bar and adapted, during the motion of the reciprocating partsof the machine, to operate within the hub of the wheel.

The tool-bar is to be somewhat smaller than the diameter of the bore ofthe Wheel in which it is to work, and the tool will be of, such len ththat, while ro'ecting its cutting end rom the side of the ar it maystill pass down through the bore of the wheel.

tion through the bore of the wheel, the table

